iron-carbon phase diagram

例句：

1. 1.The iron-carbon phase diagram is used to determine the optimal temperature for casting steel.
   铁碳相图用于确定铸造钢的最佳温度。
2. 2. The study of iron-carbon phase diagrams has led to significant advancements in materials science.
   研究铁碳相图在材料科学领域取得了重大进展。
3. 3.The iron-carbon phase diagram shows that at a certain temperature, the alloy will undergo a transformation from one phase to another.
   铁碳相图显示，在一定温度下，合金将从一个相转变为另一个相。